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TT: Fachverband Tiefe Temperaturen
TT 9: Correlated Magnetism – Low-Dimensional Systems
TT 9.4: Vortrag
Montag, 17. März 2025, 15:45–16:00, H33
Synthesis and physical properties of the quasi-spin chain compound Li2CuO2 — •Ashiwini Balodhi1,2 and Min Gyu Kim2 — 1Experimentalphysik IV, Ruhr-Universität Bochum, 44801 Bochum, Germany — 2Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA
Li2CuO2 serves as an excellent model system for investigating low-dimensional magnetism, owing to its simple CuOi4 square planar coordination along the b-axis (orthorhombic structure). Previous studies on both polycrystalline and single-crystal samples have revealed an antiferromagnetic (AFM) transition at TN ∼ 9 K, accompanied by a canted AFM spin structure at T = 2.6 K. To probe the intrinsic magnetic properties of Li2CuO2, we synthesized this material using the flux method. We will present detailed magnetic, and heat capacity measurements on flux-grown samples. Magnetization and heat capacity data confirm a long-range antiferromagnetic transition at TN = 9.3 K. In contrast to earlier studies reporting ferromagnetic components at low temperatures, our results do not indicate any evidence of ferromagnetic ordering in low temperature regime.
This work is supported by the University of Wisconsin-Milwaukee.
[1] A. Balodhi, M. G. Kim, Crystals 14, 288 (2024).
[2] A. Balodhi, M. G. Kim. J.Magn.Magn.Mater. 611, 172617 (2024).
Keywords: One dimensional materials; Li2CuO2; Antiferromagnetism; Quantum spin chain